7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.
Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.
Blue Signature™ Mini Replacement Filter
Keep Blue Signature™ performing at its best with long-lasting 7-stage filtration designed to tackle particles, allergens & household odors.
Fast & free shipping
30-day returns
Extended warrantyWhy you’ll love it
Long-lasting filtration that keeps clean air simple and takes the guesswork out of replacement.
- Helps capture dust, pollen & pet dander
- Tackles everyday household odors
- Lasts longer for fewer filter changes
- Tracks filter life based on how you actually use your purifier
- Alerts you when it’s time for a replacement
- Designed for a quick, hassle-free swap
Up to 1-year
filter lifetime 
Accurate filter lifetime tracking 
App replacement alerts 
Quick & easy filter
changes
Features & Technologies
- 1 year filter lifetime
- Replace your filter without the hassle with an effortless pull-away design
- Designed for quick, tool-free replacement.
7 stages of filtration capture tiny airborne pollutants while OdorFence™ Technology helps break down common odors.
Simple filter changes and RealTrack™ monitoring take the guesswork out of keeping your purifier performing its best.
How to find your model
Unlock your phone & tap & hold it to the sticker on the cage of your device. It automatically direct you to the compatible filter.
Blueair’s proprietary RealTrack algorithm accurately calculates the remaining filter lifetime based on fan speed, usage time and pollution levels.
Dirty filters clean the air less efficiently. Sign up for a filter subscription and get fresh filters delivered right when you need them.
FAQ
How often do I need to change the filter?
Your filter will last up to 1 year. When it's time to replace the filter, the filter replacement LED on the interface will turn red to remind you.
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Originally published on Blueair US
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